Enhancing the Performance of Power Compensating Device (UPQC) with Sinusoidal Current Control Strategy

This paper evaluates the PQ problems occurring in medium distribution utilities which are exacerbated by critical loads connected to them. Using Custom Power Devices, sinusoidal current can be taken from the power source, as well as addressing power quality issues and altering the zero-sequence power. The methodology suggested is based on a constant current control simulation of Unified Power Quality Conditioner (UPQC). This strategy able to achieve a dependable and sinusoidal current waveform. The interfacing between UPQC and the supply system and critical load so to compensate reactive power and separating the harmonic power generated due to nonlinear load. MATLAB R2014b has been used as simulation for critical loads, a 3-Φ, 4-wire system with clamped neutral point architecture is used. As a result of simulation, a seemingly sinusoidal current is produced from the supply system, with a desirable Total Harmonic Distortion of less than 0.04 percent.